Deep and shallow well cylinder protector



A. B. MUELLER DEEP AND SHALLOW WELL CYLINDER PROTECTOR Aug. 3 1926.

Original Filed ly 5, 192 s 3 Sheets-Sheet 1 N V E TOR 4. 61267} -|li|lf WITNESSES gff A TTOR NE YS Aug. 3 1926.

7 A. B. MUELLER DEEP AND sHALLovg WELL CYLINDER PROTECTOR 3 Sheets-Sheet 2 Original Filed ly 5.- 1923 Illlilin.

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A. B. MUELLER DEEP AND SHALLOW WELL CYLINDER PROTECTOR Original; Filgd July 5, 1923 3 Sheets-Sheet 3 WITNESSES IN V EN TOR ATTORIf/EY as to hold the same securely in position; it will be seen that the gland 29 constitutes a guide for the sucker rod 16, also gland 29 holds stufling box packing in position and also prevents fallen matters from entering the working barrel through the protector.

The lower portion of the sucker rod 16 is provided with the usual plunger complete consisting of cup'leather 30, valve cage bracket 32 and valve 33, seated on plunger base, which have a working fit in the working barrel and on. the upstroke draw in a quantity of liquid through valve 37. The cups are carried by the usual cage 32 suspended troin the sucker rod 16 and a valve 33 located within the cage 32, seated on plunger base. In summarizing it will be seen that falling and settling rust, scale, sand, clay, sticks, etc. through and from the pumptubing 34: and from sucker red 16 are prevented from settling in working barrel 2'? on the cups and valves 33 and by the protector oi tube 15 and its associated elements. In'tlns manner scarringof the cylinder or working barrel 27, cups 30 and valves 33'and 37 and valve seats, rapid wear on. the cups 30, blocking of the seat valve 37 and plunger valve 33 and serious damage to the same is prevented; also the lower base member 20* prevents the sediments and the like from entering the working barrel 2'? below base 20, which does not pulverize from the triotion caused by the pumping of liquid through protector tube 15 or similar perforated tube. V

The lower portion of the working barrel has a seat valve 37o)? any desired construc tion, which seat valve 37 allows the oil, water, etc. to enter the working barrel 27 and prevent the return of the same. The lower portion of the nipple 31 is provided with a protector interchanged, used as a strainer, perforated strainer tube 39 which is surrounded by gauze wire 40 or the like. The oil, water, etc. enter by the way of the gauze wire 40 and the like, and protector tube usedfor strainer tube 39 through the nipple 31 and into the working barrel 27 by the way of seat valve 37. It is here noted that tubes, copper and brass cloth of any desired size perforation and gauze wire or any desired mesh may beemployed, this 7, feature be ng merely a matter of CllOlCG or discretion on the part of the operator to combat falling and rising sediments. The lower portion of the perforated tube 37 is closed by a disc 11 confined between upper and lower fastening member base 42 and base collar 43 respectively, the upper fas- H 'teningbase member 42 being threaded onto the lower portion of the tube 39.

In the form of the invention illustrated in Figures 4:, 5 and 6 the protecting member is 1n the nature of a coiled spring. 50, the

convolu'tions of which are rather close to gether so as to prevent the falling an d Settling of sediments, rust, scale, taps, sticks, sand, clay and the like, into the pump tubing and sediments from liquid being pumped through the'convolutions of the coiled spring protector from entering and settling'within working barrel 59 on the cups 60 and valves 61 and 65. The pressure from the forcing of liquid through the convolutions of 'the coiled spring 50 causes the spring to expand and open suiliciently to allow passage of the liquid drawn up with the sucker rod 63 and its associated elements.

As'the sucker rod travels on the downward stroke the pressure from the liquid is exhausted and the. convolutions of the coiled spring 50 close to its original position,

which prevents sediments and the like from entering the working barrel 59 through the interior of the coil. Also the coiled spring 50 is used for the pumping of liquid of a. heavy consistency. The coiled spring is somewhat tapered towards the outer side at its lower end so as to be easily fittedon base 5 1 and held in position with nut 53 slipped down on the coiled spring and threaded upon base member 5 1 Also the coiled spring 50 is somewhat tapered towards the inside at its upper end so as to prevent the gland 54 'from drawing through the upper end of coiled spring '50 when the nut 51 is threaded upon the gland 54 tohold the coiled spring protector in position; also the coiled spring deflects rust,

scale, taps,sticks,and the like and prevents the clogging on account of pressure, ex-

panding, and the convolutions of the spring V pronged cap 58 by means of which the protector barrel 56 and its associated elements can be drawn out of working barrel 59 and through pump tubing, which pronged cap 58 prevents hanging wlthin joints, etc, when drawn out through pump tubing with sucke rod 63. Also the pronged cap 58 prevents the protector barrel 56 from entering further into the working barrel 59. The protector barrel 56 is located within the upper por ion of the working barrel 59, the pronged cap .58 threaded into the upper end otprotector barrel 56, the outer edge of the cap 58 ex- Figure 5 illustrates that the ends of the llO tends over protector barrel about three-e I thirty-seconds of an inch that gives the pro tector a seated position on the upper end of the working barrel 59 and prevents the sediments from entering working barrel 59 (between working barrel 59 and protector barrel 56). The important feature of the protector barrel 56 and its associated elements are; that it prevents the falling and settling matters from entering the interior of the working barrel 59, the scarring of working barrel, cups," valves and valve seats and the blocking of same, also rapid wear to the same is prevented. The usual cup 60, the valve 61, the cage 62 and the cage base are connected to sucker rod 63 and operates within the working barrel 59 as the cups (50., the valve 61, the cage 62 and the cage base is located within working barrel 59 below the protectors lower cap 55; the said protector positively prevents talling objects and sediments from interfering with the operation of the traveling valve 61 and cups 60. Also the protector prevents matters l rom interfering with the operation of the valve of the standing valve 63 mounted on the seat cap 64 in the lower portion of the working barrel 59. A valve 65 constitutes a part of the standing valve 63 and is disposed within the usual cage 66 seated on the standing valve has Seat valve 65 allows oil, water, etc., to enter the working barrel 59 and prevents the return 01 the same.

In carrying out the invention a protector closed by a disc interchanged to a strainer. l-L strainer tube 68is threaded into the standing valve base 63 and is provided with aseries of arcuate incisions by means of which the liquid is permitted to enter. The incisions in the tube 68 may be extended diagonally or otherwlse and are sufliciently narrow to prevent the entrance of undesirable matter. Thelower portion of the strainer tube 68 is closed by a disc 70 confined be tween upper and lower attaching members 72 and 73, the attaching member 72 being threaded onto the strainer tube 68 while the attaching member is threaded onto the member 72.

It might be stated that these protectors, strainers and screens are interchangeable for the purpose of protecting the working barrel and its associated elements from the top and bottom for shallow and deep well cylinders or any make and size required. The protector may be attached within the upper portion of the working barrel with a base member 20 or above the working barrel cap within a protector tube connected to pump tubing. A protector when seated within the upper portion of a deep well cylinder barrel with the sucker rod operating through its working: barrel by drawing the sucker rod with its fittings and replaced in its original position. A coupling connected with the sucker rods operating above the protector base gland is removed from base gland is used to seat the protector within its stationary posit-ion in the upper portion of working barrel when found necessary.

t might be stated that protectors of any term and size can be used in wells where found necessary to the falling matters, formations and sediments which mayenter by way of pump tubing and rise with the water, oil, etc. to prevent clogging of the protector attached below cylinder, and the blocking of the cylinder parts and allow liquid to pass through the protectors,-the working barrel and upper protector. Also the protector used above the working parts of working barrel must have larger sized openings than the strainer below the working par-3s to allow sediments drawn in through strainer to pass freely through the upper protector with liquid to prevent the 1 parts from blocking with sediments. .lne Protector illustrated in Figures 7 and 8 consists of tube the upper portion of which has a reducer 91 which has connection for pump tubing, the lower portion of the 'Jrotector tube 80 being connected with a reducer (same as reducer 91) with a nip ale 81 threa led within, adapted to be threaded in the cap of the working barrel 83. It is thus seen that the protector 80 is located above the working barrel; 83 and conse quently prevents falling matters and sediments 'iro a entering the working barrel.

teiterring again to Figures 7 and 8 it will be seen that a small tube 84- is arranged within the protector tube 80 and threaded into the 1 wer reducer same as 91 and formed with a series of openings 85 for the tree passage of the oil, water, etc. A screen 86 is extended about the small tube 8% and the openings 85 therein so to prevent foreign and settling matters from dropping through the openings 85.

In carrying out this form of the invention a sucker rod 88 is passed through the tube 80, gland base 89, small protector tube ti l and nipple 81 into working barrel 83 threaded into cage with its working fit. The gland base 89 is carried by the upper portion of the small tube 8l. A reducing member 91 is threaded onto the upper end of the tube or working barrel 80 and adapted for connection with the lower portion or the pump tubing.

hen the sucker rod 88 is threaded into the plunger valve cage then the nipple 81 is threaded into the cap 82. The protector barrel 8() and the working barrel 83 form a rigid construction below which a strainer member 9a is located and of course the lower portion of the protector member 94: may be closed by means of a closure 96 similar in construction to the members 70, 72 and 7 3.

A. modified form of protector is illustrated in Figures 10 and 11 wherein the outer prooperation of the same.

teeting tube 100 has its upper end provided with a cap 101 adapted to be threaded onto the lower end of the pump tubing; also the lower portion of the outer protecting tube is provided with a cap 102 with which a nipple 108 is connected The nipple'103 is in turn threaded onto the cap; 82- of Figure 9, so as to mount the protector above the working barrel 83. A sucker rod 105 operates up and down through the gland 112, also packing must be use l within gland seat when necessary. The sucker rod 105, is extended through the pump tubing and the perforated tube 106 and its associated elements into the working barrel and threaded into valve cage within working barrel 83. The tube 106 is "formed with aseries of diagonal incisions 10'? formed by sawing or otherwise. The upper portion of the tube 106 is formed with a base 110 with which a threaded collar 111 is engaged and forms a means to hold the gland 112 in position, which gland acts to guide the sucker rod 105 and prevent the entrance of materials into the tube 106. It will be seen that the improved protector forms an etiicient means for preventing objects from settling, scarring and lodging on the cups and valves and interfering with the The inventive idea involved in this application may be carried out in shallow and deep well cylinder protec tors of any form and size for shallow or deep well cylinders of any size, construction or arrangement. V

In operation, various types of interchangeable protectors, strainers and screens may be employed to combat, sand, clay, rust, sticks and the like from entering the working barrel and to protect the parts of the working barrel, the working barrel and the cups and valve leathers The openings in the various strainers and screens may be either large or small according to the formae tion and sediments within which the same are located and the gravity of the fluid pumped.

The foregoing illustrates that this invention is capable of a wide variety of mechanical expressions and it is therefore to-be understood that such minor changes inarrangement and construction of partsv may be made as will remain within the spirit of the invention and the scope of what is claimed.

aving thus described the what is claimed is 1. In combination with a working barrel, and aplunger operating therein, a protector within the upper part of the barrel and comprising a. hollow body consisting of a spring coil, means for closing the upper end of the coil, the lower end of the interior of the coil communicating with the interior ot' the working barrel, the convolutions of the coil being closely adjacent to prevent sand, scale, sticks and the like falling onto the plunger in the working barrel, the spaces between the c'onvolutions providing openings transversely of the hollow body to permit discharge of water from the working barrel.

2. In combination with a working barrel, a plunger operating therein and a sucker rod for actuating the plunger, a protector comprising a protector barrel fitted-within and mounted on the upper end of the workinvention,

ing barrel, the protectorbarrel beingentirely' contained within the working barrel, a hollow body arranged and entirely contained within the protector barrel, said hollow body having openings transversely thereof along its entire length, means for closing the upper end of the hollow body, said means having an opening in which the sucker rod is slidably fitted, the hollow body having an opening in its lower end affording communication between the interior of the hollow body and the space within the working barrel in which the plunger operates and also affording a clearance for accommodating the sucker rod, the outer periphery of the hollow body being spaced from the inner periphery of the protector barrel, and

means for closing the space between the lower end of the hollow'body and the lower end of the protector barrel.

ALBERT BONHAM MUELLER. 

